News on China's scientific and technological development.

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OppositeDay

Senior Member
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ILikeChina said:
Do you have a source for VHTR? Thanks in advance.
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The VHTR demonstration plant HTR-PM and the commercial 600 MWe HTR-PM600 both got mentioned in the five-years plan outline, and they are the only gen iv reactors got mentioned.

According to this report
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R&D on a supercritical model will conclude by 2023, development of a hydrogen generation model will then follow. HTR-PM and HTR-PM600 operates at around 800°C, which is fine for electricity. For hydrogen and industrial applications, a supercritical reactor at around 1000°C is needed.

A electricity-hydrogen cogeneration reactor capable of adjusting the electricity-hydrogen production ratio on the fly would be a terrific complement to solar and wind.
 
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foofy

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The world's first new "dual target" class of biological drug for the treatment of systemic lupus erythematosus (SLE)—Telitacicept (RC18, trade name: Tai'ai®) was approved by the State Food and Drug Administration with the approval number : S20210008 Standard Chinese Medicine. Telitacicept was approved marking that China has taken the lead in the world in the research and development of new drugs for the treatment of systemic lupus erythematosus, and a major breakthrough in SLE
 
horse

horse

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KYli said:
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China has a satellite doing quantum communications from space for a few years now. The speed probably needs to improved, it is a secret experiment of sorts, we do not get to see the data, and neither white privilege get to see the data.

China is probably half way done building their complete underground quantum communications network, using cables. I thought three cities already connected.

This mostly everyone here knows this.

What China is deploying in the field, and working with in the field, is still on the drawing board in America and Japan. That was too much to take, so the Japanese article would not say it that way. What the article should have stressed, were the positives, like how England will sail warships to the Pacific Ocean. There must be a point to this British initiative, it could be related to quantum mechanics.

:p
 
V

voyager1

Captain
Registered Member
horse said:
China has a satellite doing quantum communications from space for a few years now. The speed probably needs to improved, it is a secret experiment of sorts, we do not get to see the data, and neither white privilege get to see the data.

China is probably half way done building their complete underground quantum communications network, using cables. I thought three cities already connected.

This mostly everyone here knows this.

What China is deploying in the field, and working with in the field, is still on the drawing board in America and Japan. That was too much to take, so the Japanese article would not say it that way. What the article should have stressed, were the positives, like how England will sail warships to the Pacific Ocean. There must be a point to this British initiative, it could be related to quantum mechanics.

:p
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The way I see it, the US is ahead by 1-2 years on quantum computing (no the recent Chinese quantum experiment doesn't count)

However China is many more years ahead in quantum communications (I would say 4-5 years at least) and with deploying an all around quantum network, security will get very advanced in civilian and military communications.

Does quantum communication offers something else except security?
 
B

B.I.B.

Captain
voyager1 said:
The way I see it, the US is ahead by 1-2 years on quantum computing (no the recent Chinese quantum experiment doesn't count)

However China is many more years ahead in quantum communications (I would say 4-5 years at least) and with deploying an all around quantum network, security will get very advanced in civilian and military communications.

Does quantum communication offers something else except security?
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Possibly not. But the possibility of Five Eyes being unable to intercept Chinese internal communications is a plus.
 
horse

horse

Major
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voyager1 said:
The way I see it, the US is ahead by 1-2 years on quantum computing (no the recent Chinese quantum experiment doesn't count)

However China is many more years ahead in quantum communications (I would say 4-5 years at least) and with deploying an all around quantum network, security will get very advanced in civilian and military communications.

Does quantum communication offers something else except security?
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From the reports, the Chinese quantum computing experiment was infinitely faster than what the American experiment was able to do. One of the most important point about computers, is the speed. Like they say in sports, speed kills. Not sure why you would say that Chinese experiment does not count.

Quantum communications is unbreakable. It cannot be hacked. That is what it mainly offers, the security. What comes next, in this secure network, if the Chinese develop it and refine the bugs out of it, then quantum communications goes global. They might even get Ren Zhenfei as the figure leading this rollout.
 
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voyager1

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horse said:
From the reports, the Chinese quantum computing experiment was infinitely faster than what the American experiment was able to do. One of the most important point about computers, is the speed. Like they say in sports, speed kills. Not sure why you would say that Chinese experiment does not count.

Quantum communications is unbreakable. It cannot be hacked. That is what it mainly offers, the security. What comes next, in this secure network, if the Chinese develop it and refine the bugs out of it, then quantum communications goes global. They might even get Ren Zhenfei as the figure leading this rollout.
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I didn't count the chinese experiment as proof.that China is ahead because

1. In the various experiments conducted around the world, research focuses on 4-5 different ways to achieve quantum computing with different advantages and disadvantages for each from them. For what I know as a casual observer, China is ahead in one of these ways and on the rest of 4 ways the West is ahead.

2. The Chinese experiment is not reprogrammable. So basically all the work from research to design to implementation was hard-coded from the start. So if you want to do something else with this quantum "computer" you cant because the experiment was made specifically to solve one algorithm.

In conclusion, China is ahead in 1 of the 4-5 fields while on the rest the West is ahead. And China's experiment was hard coded and cant be easily made to solve another problem.different to one designed to do.(if you have computer science knowledge then you will know why something that is hard coded is not the same as another that can be programmable). Now.I am.not.bashing the team's achievements and I am sure that their research will find a use but it is important to recognise that for general purpose programmable quantum computing, China is not ahead
 
horse

horse

Major
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voyager1 said:
I didn't count the chinese experiment as proof.that China is ahead because

1. In the various experiments conducted around the world, research focuses on 4-5 different ways to achieve quantum computing with different advantages and disadvantages for each from them. For what I know as a casual observer, China is ahead in one of these ways and on the rest of 4 ways the West is ahead.

2. The Chinese experiment is not reprogrammable. So basically all the work from research to design to implementation was hard-coded from the start. So if you want to do something else with this quantum "computer" you cant because the experiment was made specifically to solve one algorithm.

In conclusion, China is ahead in 1 of the 4-5 fields while on the rest the West is ahead. And China's experiment was hard coded and cant be easily made to solve another problem.different to one designed to do.(if you have computer science knowledge then you will know why something that is hard coded is not the same as another that can be programmable). Now.I am.not.bashing the team's achievements and I am sure that their research will find a use but it is important to recognise that for general purpose programmable quantum computing, China is not ahead
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First of all, let me state my credentials, I have none. I am not an engineer, and I am not a coder.

I can tell how this Chinese quantum computer experiment was better than anything in the west.

Code is written in plain text, like in notepad, then complied. The American quantum computer is nowhere near that. Whatever programming that can be done in those American quantum experiments will be rather rudimentary. They have to make that thing viable before we start dreaming of writing code.

Look at the layout of the Chinese quantum computer system. It is the size of a ping pong table. They could build another ping pong table. They could put 16 of them in a room.

Not only was the Chinese experiment faster, it is scalable. Not only is it scalable, it probably even more reliable because it is using light. (Stability of a single particle to be split is a real issue in these experiments as I understand it).

Look at that ping pong table. Step back take a look. That is a circuit board. With the light gun that fires the photon, that goes through the crystals and mirrors, they can open one path, close another, and that makes it programmable.

That kind of programming is rudimentary, but they would be scaling up the speed. It should leverage the speed and scalability, for speed and programming functions. Suppose they have one Chinese quantum computer only dedicated to hacking pass words they sniffed out from the world wide web.

Let's do it. If that Chinese quantum computer only has one function of cracking any password, then let's do it.

Are we there yet? Here I have no credentials, so I do not know, just seems kind of close. Besides, we will never hear too much about this anymore as this all a state secret now.
 
V

voyager1

Captain
Registered Member
horse said:
First of all, let me state my credentials, I have none. I am not an engineer, and I am not a coder.

I can tell how this Chinese quantum computer experiment was better than anything in the west.

Code is written in plain text, like in notepad, then complied. The American quantum computer is nowhere near that. Whatever programming that can be done in those American quantum experiments will be rather rudimentary. They have to make that thing viable before we start dreaming of writing code.

Look at the layout of the Chinese quantum computer system. It is the size of a ping pong table. They could build another ping pong table. They could put 16 of them in a room.

Not only was the Chinese experiment faster, it is scalable. Not only is it scalable, it probably even more reliable because it is using light. (Stability of a single particle to be split is a real issue in these experiments as I understand it).

Look at that ping pong table. Step back take a look. That is a circuit board. With the light gun that fires the photon, that goes through the crystals and mirrors, they can open one path, close another, and that makes it programmable.

That kind of programming is rudimentary, but they would be scaling up the speed. It should leverage the speed and scalability, for speed and programming functions. Suppose they have one Chinese quantum computer only dedicated to hacking pass words they sniffed out from the world wide web.

Let's do it. If that Chinese quantum computer only has one function of cracking any password, then let's do it.

Are we there yet? Here I have no credentials, so I do not know, just seems kind of close. Besides, we will never hear too much about this anymore as this all a state secret now.
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Well no.need to get all worked up. I agree with you. The experiment is ahead from the rest of the world in this field.
As you say if they can scale it up (or down) for a specific job it would work perfectly. An example you mentioned cracking passwords, another one maybe would be gas/ liquid atoms simulation for helping to design engines (military ;) ), and other ways as well.

I just wrote my comment before to urge caution so there wont be any premature celebrations. Now this is one way and China is ahead and you already found some application where China would gain a new advantageous capability.
Now imagine the rest 4 different ways that west is ahead. We are still in very very early stages on research, maybe on the future China's way would be found unworkable for other applications or maybe the 4 other ways that the West is leading would would not be working in the future or maybe all the ways are correct and China would have to get ahead on the other ways as well.

In sum, this field is very complex and it is too early to declare winners and losers. The media and the news don't know anything so I would avoid any headlines such as "China is winning", "China claims quantum supremacy" or "Has China already won on quantum computing?". These headlines are rubbish and the truth is more nuanced.
My opinion remains that on this specific way China is ahead but generally on the field of quantum computing the US is leading. And regarding quantum communications China is far far ahead. That's my 2 cent, I wont be coming back for further discussion on this topic
 
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